Modeling space consumption of a migrated vm

a technology of model space and vm, applied in the field of model space consumption of migrated vm, can solve the problem that the performance of storage devices may still suffer

Active Publication Date: 2020-04-23
TINTRI BY DDN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if the effects of an undesirable event may be improved by a subsequent action (e.g., the migration of some files away from the storage device at which the undesirable event has occurred), the storage device may still suffer lowered performance for at least a period of time.

Method used

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  • Modeling space consumption of a migrated vm
  • Modeling space consumption of a migrated vm
  • Modeling space consumption of a migrated vm

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0297]

Combinedspace_threshold_100Predicted MetricTypeExplanation forStorage Device [x] has a [p]% chance of runningVM Migrationout of space within the next week. This will causeVMs running on this storage device to fail dueto SCSI write errors.Backup DataStorage Device [x] is currently [q]% full ([s] TiB).Its usage has been increasing [r] GiB / week.If FixedSpace usage on Storage Device [x] will decreaseby [s] GiB. This will reduce the chance of runningout of space to less than [p]%.Destination StorageSpace usage on Storage Device [y] will increase byDevice[s′] GiB subsequent to the VM migration.

example 2

[0298]

Combinedspace_threshold_98Predicted MetricTypeExplanationStorage Device [x] has a [p]% chance of becoming98% full within the next week. Once this level hasbeen reached, the Storage Device will not permitany further snapshots to be taken.Backup dataStorage Device [x] is currently [q]% full ([s] TiB).Its usage has been increasing [r] GiB / week.If fixedSpace usage on Storage Device [x] will decrease by[s] GiB. This will reduce the chance of missingsnapshots to less than [p]%DestinationSpace usage on Storage Device [y] will increase byStorage Device[s′] GiB subsequent to the VM migration.If violatedSpace usage on Storage Device [x] will increase by[s] GiB. This will increase the chance ofmissing snapshot to [p]%

example 3

[0299]

Combinedspace_threshold_95Predicted MetricTypeExplanationStorage Device [x] has a [p]% chance of becoming95% full within the next week. Once this level hasbeen reached, the Storage Device will not acceptany additional replicated data.Backup dataStorage Device [x] is currently [q]% full ([s] TiB).Its usage has been increasing [r] GiB / week.If fixedSpace usage on Storage Device [x] will decreaseby [s] GiB. This will reduce the chance of stoppingreplication to less than [p]%DestinationSpace usage on Storage Device [y] will increaseStorage Deviceby [s′] GiB.If violatedSpace usage on Storage Device [x] will increaseby [s] GiB. This will increase the chance of stoppingreplication to [p]%

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Abstract

Modeling space consumption of a migrated VM is disclosed, including: obtaining aggregated effective historical space usage data associated with a plurality of VMs at a storage device; using the aggregated effective historical space usage data to generate one or more predicted metrics of space usage at the storage device; and using the one or more predicted metrics of space usage to potentially migrate a VM with respect to the storage device.

Description

CROSS REFERENCE TO OTHER APPLICATIONS[0001]This application is a continuation of co-pending U.S. patent application Ser. No. 15 / 693,249, entitled MODELING SPACE CONSUMPTION OF A MIGRATED VM filed Aug. 31, 2017, which claims priority to U.S. Provisional Patent Application No. 62 / 448,253, entitled MODELING SPACE CONSUMPTION OF A MIGRATED VM filed Jan. 19, 2017, both of which are incorporated herein by reference for all purposes.BACKGROUND OF THE INVENTION[0002]Storage devices that store data typically react to mitigate the effects of undesirable events after detecting the occurrence of such undesirable events. An example of an undesirable event may include the usage of a threshold percentage of storage space at a storage device. However, even if the effects of an undesirable event may be improved by a subsequent action (e.g., the migration of some files away from the storage device at which the undesirable event has occurred), the storage device may still suffer lowered performance fo...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F9/455
CPCG06F2009/4557G06F9/45558G06F2009/45579
Inventor POPURI, SIVAGRITTER, MARK G.
Owner TINTRI BY DDN INC
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